Recording plate-holder



A, G. BOXELL.

RECORDING PLATE HOLDER.

APPLICATION FILED MAY 22, 19H). 1 3,3(),235, Patented Feb. 10,1920.

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A TTORNE YS unrrm) STATES reruns? orn on.

c e-UsTusc. oxnrnor Los ensures, CALIFORNIA.

V RECORDING PLATEfl-IOLDER.

To allwkom it mag concern:

Be it known that I, AUGUSTUS G. 'BOXELL, a citizen of Great Britain, residing at Los Angeles, in the'county of Los Angeles and State of California, have inventeda *new and 4 useful Recording Plate- Holder,- of which the "following is a specification.

This invention relates 'to means whereby an inscription may lie-written upon alightsensitive film for identification and recording purposes. I An object of the invention is toso'construct the plate holder that the operator may, at will, before or after making air-exposure of the plate in the "holder, inscribe a suitable number or other identification inscription upon the sensitized film.

Another object "'isto provide a device of this character of comparatively simple construction and one which can be readily'ma-nufactured.

Another object-isto so construct the "hold crgthatany one employing 'it can makethe inscription on the sensitized film without any substantial loss of time.

Other objects and advantages will appear in the .subjoined detailed description.

The accompanying drawings illustrate the invention.

Figure 1 is an elevation of one face of a 7 plate holder made in accordance with the provisions ofthis invention.

Fig. 2 is an enlarged fragmentary sectional elevation on :line indicated-by w a F ig. 1, one of the slidesbeing omitted and a platebeing shown in place in jtheqholder.

'Fig. 3 is a fragmental elevation looking at the inner "face ofone of the members of the slide in Fig. '2. a v

There is provided a frame 1 of any suitable construction. The frame may be of any size and shape and in the drawingszisof the well known rectangular shape employed in, so called, plate-cameras. The plate holder shown in the drawings is a double one, that is it is intendedrto hold tw oqolates. However, if desired, the invention may be constructed in the form of a single plate holder as will be clearly evident. The frame 1 is provided with a partition 2 which separates the plate chambers 3 from one another, the outer sides of the plate chambers being adapted to be closed by removable slides 4: which pass through slots 5 in the frame. The longitudinal margins of the slides 4.- fit in grooves (3 extending longitudinally in the in- Specification of Letters Patent. Patented Feb, 10, 1 920,

Application 'filed-May 22, 1919. SerialNc. 298,935.

tive to-light rays.

Thus .far described the construction conforms with-the commonlyused type of plate holder employed in plate cameras. "Each of the slides at is provided with opening or vided 'with a sensitized-film awhich'is sensiwindow 9 of any suitable size and said window may be located along any one of the margins ofthe slide. Preferably the window will be located in such position that when the slide is in closed position, the window will lieadjacent that end of the fram'eyl opposite the end having "the slot 5. -However, the window maybe otherwise located if preferred. In the window9 ,is

' positioned a flexible curtain 1O constructed of any suitable material that will exclude light rays or at least such "light rays "that.

have actinic action on a sensitized photographic plate. If the curtain '10 is constructed of more or less transparent or translucent material it may be given an orange color so as to exclude Ithose light rays which otherwise would affect the light-sensitive coating of the plate. I may employ, for example, sheep-skin for the curtainlO, but I donot wish the invention to belimited in its scope-to'the employment of such*ma terial as other materials mayanswer the purpose substantially as well. In this par ticular instance the slide at is'formed of two members and .the curtain 10 is bound or clamped at its edgesbetween thetwo members. The curtain maybe secure'dibyany' other suitable additional means, if desired. The slide 4; isarranged toglie as closeto the plateS as possible without touching said pl t The inner face of the curtain 10 is provided with a carbonized or copying element 11 clearly shown in Fig. 3. It is understood that this carbonized element may be an in tegral part of the curtain 10 or may be of separate construction from said curtain. This carbonized element 11' is adjacent the plate 8 so that any one pressing with a stylus or other suitable instrument, not shown, on

ed instrument upon the curtain 10.

the outer face of the curtain 10 will cause contact of the carbon element 11 with the film of the plate 8 so that carbon particles from the portions of the element 11 thus- .byv moving the stylus in contact with the curtain 10 appear on the film.

The invention operates as follows: The light-sensitive plates will be placed inthe plate holder in the customary manner with the film sides of the plates turned outwardly, and the slides will then be closed over the plates. The photographer, either before-or after making the exposure in a manner well understood in the photographic art, will makeany suitable notation on the plate by moving a stylusor other more or less pOl%t LY pressing the stylus against the curtain he may inscribe any suitable character or characters on the film of the plate. It .may be assumed, for example, that he thus marks different numbers on plates which he exposes for various sittings. The plates will then be developed in the ordinary way to produce negatives,and on the films of said negatives will appear in carbon the numbers which he originally inscribed on the films of the plates. The person charged with sorting out the negatives will do so according to the numbers thereon.

A great advantage of theinvention will be understood when it is considered in connection with the photographic work done in a photographic studio. Some studios have several operators and, under the present system employed, the plates are not numbered until after they have been developed. Many platesmay be exposed by each. operator in the course of a days work and thus, when the plates are developed, it requires a great deal of the operators time to assort and select the negatives which were produced by exposures madejby them. At present, when thus sorting out the negatives, the operator numbers them for future reference. this invention each operator will number his negatives before they are developed and, if the operators employ different blocks of numbers, the negatives made by any particu lar operator can be readily separated from those made by the other operators and this With may be done by any attendant who is given a memorandum of the block of numbers used by that particular operator. This invention,

cially important when an extra large number of exposures is made in one day. \Vhen the carbonized element becomes worn so as not to copy well, it may be renewed.

The invention is not limited in its broader phases to the exact details of construction shown in the drawings and described above, but the invention also includes such changes and modifications as lie within the spirit and scope of the appended claims.

I claim:

1. A recording plate holder comprising a frame adapted to receive a photographic plate, a slide for the frame to cover the plate and provided with a window, a flexible curtain for the window fastened to the margins of the window and adapted to exclude aotinic light rays from the plate, and a carbonized element associated with the [slide and adapted to be pressed againstthe plate by pressure on the curtain, V

2. A recording plate holder comprising a frame adapted to receive a photographic plate, a slide for the frame adapted to extend over a portion of the plate, a flexible curtain fastened to the slide and adapted to extend over another portion of the plate, and a carbonized element adapted to be pressed against the plate by pressure on the curtain.

AUGUSTUS o BOXELL.

Vvitnesses GEORGE H. HILES, L. BELLE WEAVER. 

